Tarquin
As Benedikt mentioned, scraps are joined, not maps. If you join scraps, the
maps that use those scraps will automatically show the join, so the maps
themselves are not relevant to the joining process.
I have an example of a three cave system that we surveyed and subsequently
joined in 2007-2008. The highlighted words are the names of the respective
cave surveys.
For one of the joins, we could use a simple (and recommended) scrap to scrap
join, using scrap_ids;
join GreenlinkUSumpsPlan_s2@Greenlink GreenlinkFPlan_s1@MiddleEarth -smooth
on
For the other pair of caves, I have lots of lines within each scrap that
crossed from one to the other, so I had to use the more complicated line by
line joining, that you seem to be trying to follow, using line_ids;
join jpwall04@SwissM:end GUSwall02@Greenlink:end
join jpwall03@SwissM:00 GUSwall01@Greenlink:0
join jpwall06@SwissM:end GUSwall03@Greenlink:0
join jpwall07@SwissM:end GUSwall04@Greenlink:end
join uwall04@SwissM:0 swall02@Greenlink:end
join secondwall01@SwissM:0 swall05@Greenlink:end
Although looking at it now, with the benefit of 10 more years of experience, I
wonder if I could have used a simpler scrap to scrap join, with the -count 3
option. [Refer to the description of join on page 40-41 of The Therion Book].
Depending on the details of your data structure, there may need to be subtle
differences in the way you reference the scraps, but looking at your
description below, I think the style of scrap referencing I have used should
work for you (probably). If it does not, you could try removing the
(highlighted) cave survey names.
Bruce
-----Original Message-----
From: Therion <[email protected]> On Behalf Of Tarquin Wilton-Jones via
Therion
Sent: Sunday, 14 April 2019 05:32
To: [email protected]
Cc: Tarquin Wilton-Jones <[email protected]>
Subject: [Therion] Joining maps with the join command
Hi,
I am currently learning how to use Therion to draw up a detailed survey.
My survey is split into several "caves", each of which has its own .th and .th2
file. In the .th file for each cave is a separate "map", so that the cave can
be rendered separately.
cave1.th:
survey cave1
input "cave1 plan.th2"
input "cave1 ee.th2"
map cave1MP
scrap1
scrap2
endmap
centreline
...
endcentreline
endsurvey
cave2.th:
survey cave2
input "cave2 plan.th2"
input "cave2 ee.th2"
map cave2MP
scrapa
scrapb
endmap
centreline
...
endcentreline
endsurvey
Then I have an overall file which combines the maps called allcaves.th:
survey allcaves
map allcavesMP
cave1MP@cave1
cave2MP@cave2
join ____________
endmap
centreline
...
endcentreline
endsurvey
Imagine the two caves join in scrap1 (id "foo":0) and scrapb (id "bar":end),
and I want to use a join command to make the scraps join neatly (I have already
positioned the passage ends very close to each other). Could you please tell me
the syntax needed to make the join command reference the correct points of the
correct lines inside the correct scraps inside the correct maps?
Every example of the "join" command I could find assumes you were trying to
join scraps inside the same map, and did not show how to reference items in a
sub-map. As a result, I have not been able to work out how to construct a valid
join command for this situation.
Many thanks for any information you can provide.
Tarquin
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